/usr/share/avogadro/crystals/ice/H2O-Ice-VII.cif is in avogadro-data 1.2.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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_chemical_name_mineral 'Ice VII'
loop_
_publ_author_name
'Kamb B'
'Davis B L'
_journal_name_full 'Proceedings of the National Academy of Sciences'
_journal_volume 52
_journal_year 1964
_journal_page_first 1433
_journal_page_last 1439
_publ_section_title
;
Ice VII, the densest form of ice
Note: T = 223 K, P = 2.5 GPa
;
_database_code_amcsd 0018369
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'O H2'
_cell_length_a 3.30
_cell_length_b 3.30
_cell_length_c 3.30
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 35.937
_exptl_crystal_density_diffrn 1.665
_symmetry_space_group_name_H-M 'P n 3 m'
loop_
_space_group_symop_operation_xyz
'x,y,z'
'1/2+z,1/2-x,1/2+y'
'-y,z,-x'
'1/2+x,1/2-y,1/2+z'
'-z,x,-y'
'1/2+y,1/2-z,1/2+x'
'-x,y,-z'
'x,-z,-y'
'1/2-z,1/2+y,1/2+x'
'y,-x,-z'
'1/2-x,1/2+z,1/2+y'
'z,-y,-x'
'1/2-y,1/2+x,1/2+z'
'x,z,y'
'1/2-z,1/2-y,1/2-x'
'y,x,z'
'1/2-x,1/2-z,1/2-y'
'z,y,x'
'1/2-y,1/2-x,1/2-z'
'1/2+z,1/2+x,1/2-y'
'-y,-z,x'
'1/2+x,1/2+y,1/2-z'
'-z,-x,y'
'1/2+y,1/2+z,1/2-x'
'-x,-y,z'
'1/2-z,1/2+x,1/2+y'
'y,-z,-x'
'1/2-x,1/2+y,1/2+z'
'z,-x,-y'
'1/2-y,1/2+z,1/2+x'
'x,-y,-z'
'-x,z,-y'
'1/2+z,1/2-y,1/2+x'
'-y,x,-z'
'1/2+x,1/2-z,1/2+y'
'-z,y,-x'
'1/2+y,1/2-x,1/2+z'
'-x,-z,y'
'1/2+z,1/2+y,1/2-x'
'-y,-x,z'
'1/2+x,1/2+z,1/2-y'
'-z,-y,x'
'1/2+y,1/2+x,1/2-z'
'1/2-z,1/2-x,1/2-y'
'y,z,x'
'1/2-x,1/2-y,1/2-z'
'z,x,y'
'1/2-y,1/2-z,1/2-x'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
O 0.00000 0.00000 0.00000 1.00000
H 0.17000 0.17000 0.17000 0.50000
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